When Jagmeet Singh recorded his video declaring he had “ripped up the supply-and-confidence agreement,” it felt like the most decisive move he had made in a very long time.

The NDP leader has performed a tricky balancing act for two years — propping up a floundering Liberal government while simultaneously painting it as corrupt and untrustworthy. It was a tall order for any leader, but it seemed to have a strategic purpose for the NDP.